Tue. Oct 20th, 2020

Chandrayaan 2 Successfully Enters Moon’s Orbit In Make-Or-Break Move

Planettnews.com

Chandrayaan 2 moon mission: “Subsequently, the lander will separate from the orbiter and enter into a 100 km x 30 km orbit around the moon,” ISRO said today

Chandrayaan 2 had lifted off from the spaceport at Sriharikota on July 22.

Bengaluru:

India’s moonshot Chandrayaan 2 has been successfully manoeuvred into lunar orbit today, after nearly 30 days of space travel. This was one of the trickiest operations in the mission.

A higher-than-expected approach velocity would have bounced off the spacecraft into deep space, while a slow approach would have led to the moon’s gravity to pull Chandrayaan 2 and crash it on the lunar surface.

The approach velocity had to be just right and the altitude over the moon rather precise. Even a small error would have killed the mission.

Bengaluru:

India’s moonshot Chandrayaan 2 has been successfully manoeuvred into lunar orbit today, after nearly 30 days of space travel. This was one of the trickiest operations in the mission.

A higher-than-expected approach velocity would have bounced off the spacecraft into deep space, while a slow approach would have led to the moon’s gravity to pull Chandrayaan 2 and crash it on the lunar surface.

The approach velocity had to be just right and the altitude over the moon rather precise. Even a small error would have killed the mission.

“Following this, a series of orbit manoeuvres will be performed on Chandrayaan 2 spacecraft to enable it to enter its final orbit passing over the lunar poles at a distance of about 100 km from the moon’s surface,” the Indian Space Research Organisation said in a post on its website today.

“Subsequently, the lander will separate from the orbiter and enter into a 100 km x 30 km orbit around the moon. Then, it will perform a series of complex braking manoeuvres to soft land in the south polar region of the moon on September 7, 2019,” ISRO said.

The process of landing Chandrayaan 2 on the moon is very complex since it blasted off at a velocity of 39,240 kilometres per hour, which is almost 30 times the speed at which sound travels through air.
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ISRO Chairman K Sivan addresses the media after Chandrayaan 2 entered the lunar orbit successfully

The former director of the ISRO M Annadurai, who was the head of India’s first moon mission Chandrayaan 1, described the complexity of the operation: “It is like a gentleman with a rose in hand proposing to a girl World Health Organization is dance at a shocking speed of three,600 kilometres per hour (almost 5 times the speed of associate degree airplane), and not next door, but at a distance of 3.84 lakh kilometres away. If the couple have to meet, then the precision and accuracy is of utmost importance.”

India’s most ambitious space mission to date, Chandrayaan 2 had lifted off from the spaceport at Sriharikota in Andhra Pradesh on July 22. The lift-off was thriving in its second try, per week when it had been aborted just below Associate in Nursing hour from its launch because of a technical fault.
The mission stands out attributable to its low price, with as regards to Rs. 1,000 large integer spent – a far smaller tag compared to similar missions by different countries.

If victorious, the mission can create Republic of India the fourth country to soft land a rover on the satellite surface once Russia, U.S.A. and China. The last nation to aim a soft landing on the moon, Israel, failing in its mission earlier this year.

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